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Sad Junkie


Beihang University, Beijing, China

Last seen: 6 dagen ago |  Active since 2021

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Programming Languages:
MATLAB
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  • MATLAB Mini Hack 2022 Participant
  • Knowledgeable Level 1
  • Thankful Level 3
  • Revival Level 1
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Question


Drag and Drop Custom Blocks on UIAxes in MATLAB
Hello. I'm trying to build an app on the MATLAB App Designer. The app is about Path Planning and Path Following of a Ground Vehi...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


Rate Transition Data Control
I'm implementing an Extended Kalman Filter on SIMULINK for sensor fusion. I have Accelerometer, Gyroscope, GPS and a magnetomete...

meer dan een jaar ago | 1 answer | 0

1

answer

Question


Plot a function of three variables on a surface plot
Hello. I have some experimental data of electric field E. The values were measured along three axes x, y and z such that: along ...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


4D Table Interpolation
I have a data set in four variables (alpha,beta,gamma,lambda). Here alpha is a 10 element vector, beta is a 8 element vector, b...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


Figure Subplot Tiles Customization
I want to create a figure containing subplots such that there are 3 columns. The first two columns are supposed to have three su...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


Vectorize Matrix Formation & Multiplication
How can I vectorize the following code clear;clc t = 1:10; v = rand(10,3); a = rand(10,1); m = 6:15; n = 6:15; M = ...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Hold a value indefinitely once a condition becomes true
I have a simulink block diagram which gives true or false based on a condition (relational operator). My problem is that once I ...

meer dan 2 jaar ago | 2 answers | 0

2

answers

Question


Counting Consecutive Threshold Crossings in a Signal (Counting Oscillations)
I have an oscillating signal in a SIMULINK model and I want to count the number of times it crosses a certain threshold level (p...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Solved


Assign matrix rows/columns to separate variables
This is a slight variant of <http://www.mathworks.com/matlabcentral/cody/problems/2668-assign-matrix-elements-to-separate-variab...

meer dan 2 jaar ago

Answered
Plot a structure array without a loop
I think I've found the answer to this myself. figure(1);hold on;grid on;box on; p = arrayfun(@(a) plot(a.x,a.y,'.-'),DATA); ...

meer dan 2 jaar ago | 1

| accepted

Question


Plot a structure array without a loop
I ran a Monte-Carlo with 300 simulation runs and I stored the output data for each run in a structure as DATA(i).x = outputX; ...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Length/Index based if else statements
I have a vector of variable length, for example b = [0.25;0.5;0.75;1;1.5;1.75;2.0]; and based on the length of this vector, I ...

bijna 3 jaar ago | 1 answer | 0

1

answer

Question


Bar Plot Legend and Axes
I have some data which I plotted as, What I want to do would look something similar to, I opened another figure and copied...

bijna 3 jaar ago | 1 answer | 0

1

answer

Answered
DatasetRef; parsim: 'Unable to read file ... No such file or directory'
try to use simOut = parsim(simIN,'TransferBaseWorkspaceVariables','On');

ongeveer 3 jaar ago | 0

| accepted

Question


Disabling Data Logging in Simulink
I have a simulation on simulink with many to-file and to-workspace blocks in it. However, now I want to run a monte-carlo analys...

ongeveer 3 jaar ago | 1 answer | 0

1

answer

Question


Scaling down values to plot on the same figure
I have a dataset with x and y values (basically a trajectory plot). I've plotted them as shown in the attached figure. I'...

ongeveer 3 jaar ago | 0 answers | 0

0

answers

Question


Using parsim with SIMULINK model containing c-mex s-functions
I have a simulation with multiple S-functions (level 2 written in c++). I want to run a Monte-Carlo analysis for my problem and ...

ongeveer 3 jaar ago | 1 answer | 0

1

answer

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

meer dan 3 jaar ago

Answered
How to Fill matrix rows with another row?
Well you could find the indices of all the nonzero rows for a matrix A as idx = find(~all(A==0,2)); and then you can replicate...

meer dan 3 jaar ago | 0

Answered
Search for optimal values of variables
I figured this out. And I'd share how i did it, in case anyone else encounters the same problem. I used fmincon with objective ...

meer dan 3 jaar ago | 0

| accepted

Question


Search for optimal values of variables
I have two parameters c1 & c2 as variables which I pass to a function and it returns x as 0 or 1 (not logical operators but valu...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Question


Equivalent of c++'s NULL or python' s None in MATLAB
I have a c++ code where certain variables (as well as certain user defined class objects) are set to NULL under some conditions....

meer dan 3 jaar ago | 5 answers | 1

5

answers

Question


'n' number of nested for loops
I have a cell array M with 4 cell elements and each cell element has a 8x2 matrix. I'm trying to making different combinations ...

bijna 4 jaar ago | 1 answer | 1

1

answer

Question


Transformation of a MATLAB Function.
I have a function defined as, f_xw = @(x,w) [3.*x(1) - x(1).^2/7 + w(1); -2.*x(2) + w(2)]; I want to transfor...

bijna 4 jaar ago | 1 answer | 0

1

answer

Question


Alternative for nested for loop
I need to implement this logic to make combinations of a matrix. This code is a bit cumbersome since I need to add more rows and...

bijna 4 jaar ago | 1 answer | 0

1

answer